Greasing textile fibers



Aug. ilt lifi.

IE'AUL MOB/1T2 SPIESS, 6F BREMEN, GERMANY, ASSIGNOR TO AMID DU'RUIR' GUIEEAZQL'Y, OF NEW YORK, N. Y1, A CORPORATION OF NEW YORK.

GREASING TEXTILE FIBERS.

Ito Drawing". Application filed February 17, 1923, Serial No. 619,760, and. in Germany February Q3, M3253.

Hitherto for greasing textile fibers in the manufacture of combed or worsted yarn, fatty oils have been used, while in the manufacture of carded yarn technical oleic acid 6 or so-called olein has been used, fatty oils being used only in certain special cases. Though olein has the drawback that in consequence of its acid nature it acts detrimentally on the cards and other parts of the 10. machines it is used in large quantity not only for the reason of its low price, but also because it is able to form with the usual alkalis more quickly than fatty oils the soaps necessary in the milling and washing 15 processes.

Now, according to my invention 1 use as greasing agents, instead of fatty oils and olein, synthetic esters prepared from saturated or unsaturated fatty, acids prefer- 20 ably derived from coconut oil, palm-kernel oil, palm oil and arachis oil and monovalent alcohol as ethyl and methyl alcohol. These esters are prepared according to the usual known methods.

Ethylic alcohol is preferable in most cases, but also methylic, propylic and isopropylic alcohol or other monovalent alcohols can be used. In certain cases also polyvalent alcohols, such as glycol or glycerin can be used.

As a special example the ethylic esters obtained from the fatty acids derived from coconut oil may be mentioned.

The esters used according to this invention have the following technical'a'dvantages.

The esters are liquid at ordinary temperature and have a low viscosity even if pre:

pared from semi-solid fatty acid mixtures; therefore they are able to impregnate the fibrous material very easily and thoroughly.

There is no danger of the'machir'ies being attacked as it is possible to prepare esters which are completely neutral or, if desired, have only a predetermined content of free fatty aci The quantities of the esters necessary for as greasing are smaller than those of oleic acid as their greasing properties are of course superior to those of oleic acid obtained from fatty oils.

lVhile in the case of oleic acid it isvery 5o ditficultto emulsify this acid material. it is easy to obtain a good emulsion with the esters used according to my invention, espe cially if emulsifying agents are used.

It is obvious that the esters according to 55 my invention can also be used together with other greasing agents.

What T claim is 1. The process of treating textile fibers, which comprises greasing the same with a so synthetic ester of a monovalent alcohol and a fatty acid of the character set forth.

2. The process of treating textile fibers, which comprises greasing the same with synthetic ester of a monovalent alcohol and an unsaturated fatty acid of the character set forth.

3. The process of treating textile fibers, which comprises greasing the same with a synthetic ester of a monovalent alcohol and a fatty acid obtained in refining edible oils and fats.

4. The process of treating textile fibers, which comprises greasing the same with a synthetic ester of a monovalent alcohol and T51 a fatty acid obtained from coconut oil.

5. The process of treating textile fibers,

which comprises greasing the same with an ethylic ester of a fatty acid of the character set forth. I 6. The process of treating textile fibers, which comprises greasing the same with an ethylic ester of a fatty acid derived from coconut oil.

Tn witness whereof I my hand.

have hereunto set IPA UTA MURTTZ SPTESS. 

